1. Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong, China
2. Weifang Medical University, Weifang, Shandong, China
3. Department of Resident Standardized Training Management, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, Shandong, China
4. Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China